Improvement in drilling-machines



NITED STATES PATENT OFFICE.

WILLIAM MORTON, OF WOODHULL, NEW YORK.

IMPROVEMENT IN DRILLING-IVIACHINES.

Specification forming part of Letters Patent No. 42,01 l, dated March 22, 1864.

ing a part of this specification, in Which- Figure 1 represents a side elevation. Fig. 2 shows an end view. Fig. 3 shows a top view of table and press-lever,with regulating apparatus, in dotted and red lines.

The object of my invention is to control the pressure of the drill upon the subst-ance, so that whether itbe hard or soft the drill-point and cutting-edges can be preserved from breaking and any degree of pressure requisite applied; and my invention consists in t-he arrangement and combination of a hanging yoke or beam, being suspended on hanging rods or bolts made adjustable by sliding nuts and setscrews, and in the center of the yoke under the press-lever a regulating screw and wheel, so that the operator can regulate the pressure at his Will. j

To enable others skilled in the art to make and use my invention, I will describe it more fully, referring to the drawings and to the lettersinarked thereon.

I make a frame ot' timber, having foot-sills A A, connected together by timbers B B, to iorm the base. Into the sills A A are framed four posts, O O O O, thespace being left between the two at each end ofthe frame of sufficient width to place a strong lever, D, one enl being held in its position by a bolt or par, l1, and the other end being allowed to move freely up and down between the posts C O, they serving as the guides to keep the lever D steady. rlhe posts C C are held in place by a plank, E, on the top, across which rests a short timber, F, to which the hanging yoke'a is suspended by rods d d, the same being made adjustableand secured by nuts c c and set' screwsl c e. I n the center of the yoke a is fitted a screw, f, it having on the lower end a hand-wheel, g, and on its upper end a socket,

h, for the purpose of receiving a cone-point,A d

or platform, g, on which to place the Work to be drilled. On one side of the table-is a movable plank, I, which can be taken off, so as to place t-he wheels of vehicles in a position to drill the tire after it is set, or anything that is too high to be laid on the plat-form g.

The drill-stock I nd to be the most efficient for hand-power is the old-fashioned Wimble H, with a socket to receive the drill m in one end, and a point, n, at the other end, to be placed in one of the indentations in the plate k. rIhe pressure is obtained by bucket K, into which weights may be put, it being suspended to a hook, o, in the end of the lever D, so that any degree ot' pressure may be obtained and nicely regulated on the drill (by the operator) by the wheel g and screw f.

Having thus described my invention,what I claim as new, and desire to secure byLetters Patent, is

The arrangement and combination of the pressinglever D, the adjustable hanging yoke a, the regulating-screw f,with .its socket h and cone-point t, operating substantially in the manner as and for the purposes herein set forth.

WM. MORTON. Witnesses:

EDM. F. BROWN,

J. B. WOODRUFF. 

